Toyota Sequoia (2005). Manual - part 643

I28847

+B

I19

Integration Control and Panel:

I22575

DOME Fuse

Engine Room J/B

–

DIAGNOSTICS

AIR CONDITIONING SYSTEM

DI–2367

2561

INSPECTION PROCEDURE

1

Check voltage between terminal +B of integration control and panel and body
ground.

PREPARATION:
Remove the integration control and panel with connectors still
connected.
CHECK:
Measure the voltage between terminal +B of the integration
control and panel and body ground.
OK:

Voltage : 10 to 14 V

OK

Proceed to next circuit inspection shown in
problem symptoms table (See page 

DI–2304

).

NG

2

Check DOME fuse.

PREPARATION:
Remove the DOME fuse from the engine room J/B.
CHECK:
Check continuity of the DOME fuse.
OK:

Continuity

NG

Check for short in all the harness and compo-
nents connected to the DOME fuse (See at-
tached wiring diagram).

OK

Check and repair harness and connector between integration control and panel and battery.

I28843

Integration Control
and Panel

ACC

D

15 A CIG

I18
Ignition Switch

1

20

1

40 A AM1

F10
Fusible Link
Block

Battery

2

Instrument Panel J/B

3

P

W

B

1

1L

1C

6

P

1E

AM1

140

 A AL

T

ACC

5

W–L

1C

8

W–L

1

11

I19

J15
J/C

P

Instrument Panel J/B

D

GND

10

I19

O

O

J43

J43

J/C

A

A

IG

Cowl Side Panel RH

DI–2368

–

DIAGNOSTICS

AIR CONDITIONING SYSTEM

2562

ACC Power Source Circuit

CIRCUIT DESCRIPTION

This circuit supplies power to the integration control and panel. It supplies power to the illumination for the
clock.

WIRING DIAGRAM

DI938–04

I28847

GND

I19

Integration Control and Panel:

ACC

I22574

Instrument Panel J/B

CIG Fuse

–

DIAGNOSTICS

AIR CONDITIONING SYSTEM

DI–2369

2563

INSPECTION PROCEDURE

1

Check voltage between terminals ACC and GND of integration control and panel.

PREPARATION:
Remove the integration control and panel with connectors still
connected.
CHECK:
(a)

Turn the ignition switch to ACC.

(b)

Measure the voltage between terminals ACC and GND of
the integration control and panel.

OK:

Voltage : 10 to 14 V

OK

Proceed to next circuit inspection shown in
problem symptoms table (See page 

DI–2304

).

NG

2

Check CIG fuse.

PREPARATION:
Remove the CIG fuse from the cowl side J/B.
CHECK:
Check continuity of the CIG fuse.
OK:

Continuity

NG

Check for short in all the harness and compo-
nents connected to the CIG fuse (See attached
wiring diagram).

OK

Check and repair harness and connector between integration control and panel and battery.

I21123

Integration Control
and Panel

10

3A

16

I19

SPD

G–O

10

3D

Sub J/B No. 4

G–O

3

C5

Combination Meter

DI–2370

–

DIAGNOSTICS

AIR CONDITIONING SYSTEM

2564

Vehicle Speed Signal Circuit

CIRCUIT DESCRIPTION

The integration control and panel monitors the vehicle speed through signals sent from the speed sensor.
It uses these signals to receive the ambient temperature sensor signal.

WIRING DIAGRAM

DI3WE–18